... Abstract Accurate modeling of the asphaltenes precipitation from asphaltenic crude oil is essential in order to possible preventive and curative measures for the potential problem of asphaltene deposition occurring during oil production, transport and refining operations. Available...

... and numerical modeling is essential in order to correctly interpret experimental measurements of the in situ upgrading. This work will enhance the understanding and design of field scale processes. In this paper, simulation results of bitumen ultra-dispersed catalytic upgrading experiments in a batch reactor...

... of the jointed rock mass and the reservoir permeability. This relation is particularly important to model hydraulic fracturing and productivity decline in tight gas wells. In this paper, a new relation is proposed to model pre-peak shear stiffness of the joint based on the conventional joint surface parameters...

... modeling of asphaltene precipitation. The developed model has been combined with temperature and pressure modeling of the wellbore. The combined model has been used to predict the depth of asphaltene precipitation in the wellbore in several fields in an Iranian field (Kupal), as case study. The results...

... Abstract This paper extends the capacity of the current sand production models by eliminating the influence of artificial conditions and numerical mesh on localization and deformation response in the sanding model. Past studies indicate strong size effects when using classical elastoplastic...

... has been concentrated on the peculiar rock mechanics behaviour of unconsolidated sand (sand compaction/dilation and permeability evolutions). In this study models for both aspects were included into a new framework with the aim of better understand the relative weight of each mechanism. Results...

... Abstract A new numerical model has been developed for investigation of sand production under realistic reservoir/well flow conditions. The model allows prediction of critical drawdown leading to the onset of sanding as well as the rate of sand production in real time. The model predictions...

... depends on the enhancement of oil recovery and rates as well as solvent recovery. This paper, based on modeling work, investigates the effect of solvent sequencing and other potential enhancements on the performance of SAP. Introduction As previously described, in SAGD, oil viscosity is reduced...

... start to form and directly related to the oil chemical physical stability. Modeling of asphaltene precipitation in the reservoir porous media and in the oil well tubing of an Iranian south oilfield is the purpose of this study. For the reservoir, the modeling technique based on the representation...

..., has been modeled for the case of a specific refinery, in an effort to foresee and evaluate its performance on the site. A specific part of the refinery facilities, where high BTEX concentrations where measured and enough hydrogeological data existed, was chosen for the application of air sparging...

... injection. Three SAGD experiments were carried out in a scaled 3-D model packed with crushed limestone premixed with a 12.4 °API heavy crude. In these experiments, the steam-only case had the highest recovery, as expected. However, using carbon dioxide or nbutane with steam reduced the steam consumption...

... to it in drilling engineering research. This paper focuses on the modeling of erosion and the application of the developed models to improve the design of drilling tools. Mechanism of erosion, which is controlled primarily by the impact velocity and angle, has been formulated based on experimental and theoretical...

.... The rocess starts with real-time modeling, then proceeds to the ntegration of the real-time modeling and data, and passes inally to the real-time operation centers. A case study on vibration prevention is presented to illustrate the evolution of new technologies and their impacts to he drilling industry...

.... Over the past years, number of efforts has been made, in many institutions, in order to understand and model the solution gas-drive mechanism in primary heavy oil recovery. Conventional simulations succeed in matching actual field productions but are not reliable for prediction forecast purposes (large...

... Abstract Today, horizontal well technology is the viable option for draining complex geological reservoirs. Geological modeling allows proper placement of the wells, especially in thin reservoir targets, complicated by spatial stratigraphy variation and structural complexity. The model...

... Abstract The precipitation of wax and asphaltene has always brought serious problems in the petroleum industry. In order to mitigate the damage caused by the precipitation of organic solid, the research of experiment and modeling on solid precipitation, which can offer a basis for design...

... Abstract Forward modeling geosteering software allows a horizontal well to be geologically steered by determining the stratigraphic position of the drillstring. Using forward modeling software one is able to make interpretations to correctly land the well in the reservoir, maximize the pay...

... Abstract Network models of porous media incorporates microscopic characteristics of the pore space, as well as determine the evolution of the macroscopic transport properties of such systems from changes in pore structure and from chemical and physical interactions of particles, porous media...

... Abstract Characterization of fractures and their role in reservoir performance have continued to be a difficult issue to handle. Recent advances in geostatistics and geomechanical 3D modeling capabilities have given workers a helping hand into assessing routine description of fractures...

... Abstract This paper presents the mathematical basics of the Boundary Element Method (BEM) as they are implemented in the first reservoir modeling software of its kind. Multiple real-world examples illustrate how it works for oil and gas fields with different boundary conditions (flux...